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Journal : BUANA SAINS

PERTUMBUHAN DAN HASIL TANAMAN KUBIS KROP (Brassica oleracea L.) DATARAN RENDAH AKIBAT PEMBERIAN DOSIS PUPUK KANDANG AYAM FERMENTASI DAN PUPUK NITROGEN ANORGANIK Retno Tri Purnamasari; Sulistyawati Sulistyawati; Fajar Hidayanto; Reza Hardiansah
BUANA SAINS Vol 22, No 1 (2022)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v22i1.3740

Abstract

The aimed of this study was to obtain the dose of fermented chicken manure and inorganic nitrogen fertilizer for the high growth and yield of cabbage. The study used a Randomized Block Design with one factor, namely the use of a combination of fermented chicken manure and inorganic nitrogen fertilizer. The first treatment was fermented chicken manure 15 tons ha-1 combined with 75% inorganic nitrogen fertilizer; The second treatment was fermented chicken manure 15 tons ha-1 combined with 50% inorganic nitrogen fertilizer; The third treatment was fermented chicken manure 20 tons ha-1 combined with 75% inorganic nitrogen fertilizer; The fourth treatment was fermented chicken manure 20 tons ha-1 combined with 50% inorganic nitrogen fertilizer; The fifth treatment was fermented chicken manure 25 tons ha-1 combined with 75% inorganic nitrogen fertilizer; The sixth treatment was fermented chicken manure 25 tons ha-1 combined with 50% inorganic nitrogen fertilizer. The results showed the effect of the dose of fermented chicken manure and inorganic nitrogen fertilizer on the growth and yield of cabbage crop, the application of fermented chicken manure 25 tons ha -1 combined with inorganic nitrogen fertilizer as much as 75% produces the highest yield on all observation parameters with the highest crop weight weighing 27.37 tons ha-1.
PENGARUH LAMA FERMENTASI DAN DOSIS SERBUK GERGAJI KAYU JATI TERHADAP PERTUMBUHAN DAN HASIL TANAMAN BAWANG MERAH (Allium cepa L.) Var. BIRU LANCOR Retno Tri Purnamasari; A. Zainul Arifin; Fajar Hidayanto; Ilmiyah Ilmiyah
BUANA SAINS Vol 23, No 1 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i1.4916

Abstract

This study aims to determine whether there is a significant difference in the composting time of teak sawdust and the dose of teak sawdust on the growth and yield of shallots of the lancor blue variety. This research was conducted in Tidu Village, Pohjentrek District, Pasuruan Regency. This study used a factorial randomized block design (RBD) method consisting of two factors repeated three times. The first factor is the composting time (L) with L1: 4 weeks, L2: 6 weeks, and L3: 8 weeks. The second factor was the dose of teak sawdust (M) with doses of M1: 5 tonnes ha-1 , M2: 10 tonnes ha-1 , and M3: 15 tonnes ha1 . Overall there were nine treatment combinations. The results showed that composting time of 8 weeks and sawdust dosage of 15 tonnes ha1 resulted in a dry weight of wind on shallot bulbs of 10.74 tonnes ha-1